Comprehensive insulation solutions for fresh food delivery, pharmaceutical cold chain, food delivery, and outdoor scenarios. Covering insulated bags, insulated boxes, cold storage accessories, food-grade liners, and smart traceability systems to ensure constant temperature maintenance and product safety.
Justrong Company (Shanghai) Limited has been deeply involved in the cold chain packaging field for over 20 years, providing one-stop insulation solutions from raw materials to finished products for global fresh food delivery, pharmaceutical cold chain, food delivery, and outdoor leisure industries. Our products cover insulated bags, EPP foam insulated boxes, gel ice packs, food-grade PEVA liner films, and IoT smart temperature monitoring devices, fully meeting international certification requirements such as FDA, LFGB, EU, GDP, ISTA 7E, and WHO PQS.
As a B2B sourcing platform connecting Chinese manufacturing with global markets, we directly connect with factories, support OEM/ODM customization, and control the entire process from design, material quality to production technology. Whether you need bulk delivery rider insulated backpacks, GDP-compliant pharmaceutical cold chain boxes, or smart insulated bags with Bluetooth temperature recording, we can provide competitive prices and stable quality.
Backpack-style large-capacity insulated bag designed for riders, with S-shaped widened shoulder straps, breathable back pads, and waist support for fatigue-free long-hour delivery. Outer layer uses 600D Oxford cloth (waterproof coating) or 1680D abrasion-resistant nylon, inner lining uses food-grade PEVA (chlorine-free, phthalate-free), with high-frequency voltage welded seamless liner ensuring 100% leak-proof.
| Capacity | 30L / 40L / 50L |
|---|---|
| Outer Shell | 600D Oxford or 1680D Nylon |
| Insulation Layer | 5-10mm EPE foam or NBR rubber |
| Inner Lining | Food-grade PEVA or Alu foil |
| Insulation Duration | EPE 5mm: 8-12h; NBR 10mm: 24-48h |
| Operating Temp. | -40°C to +80°C |
| Heat Reflectivity | Aluminum foil ≥95% |
Professional medical insulated bag compliant with GDP standards, using VIP vacuum insulation panels or 10mm NBR closed-cell foam rubber, with phase change coolants to maintain 2-8°C for 8-12 hours. Reserved temperature recorder/sensor interface, equipped with tamper-evident seals and biohazard marking positions, suitable for high-value pharmaceutical cold chain transport such as vaccines, blood products, and biological agents.
| Capacity | 15L / 20L / 30L |
|---|---|
| Outer Shell | Abrasion-resistant nylon + waterproof coating |
| Insulation Layer | VIP vacuum panel or 10mm NBR foam |
| Temperature Control | 2-8°C for 8-12h (with PCM) |
| Temp. Monitoring | Port for data logger/sensor |
| Sealing Design | Tamper-evident seal + biohazard marking |
Lightweight and foldable design, folded thickness not exceeding 5cm, easy to store and carry. Inner lining uses machine-washable PEVA material, supporting wet wipe or machine washing to maintain hygiene and odor-free. Suitable for daily fresh food shopping, short-distance delivery, and home backup.
| Capacity | 20L / 30L / 40L |
|---|---|
| Outer Shell | Waterproof Oxford or water-repellent nylon |
| Insulation Layer | 5mm EPE foam |
| Inner Lining | Washable PEVA (machine washable) |
| Folded Thickness | ≤5cm |
| Insulation Duration | 3-5 hours |
Integrates high-precision temperature sensors and Bluetooth 5.0/WiFi modules with ±0.5°C accuracy, real-time monitoring and recording of internal temperature, with full-process temperature curve traceability through a dedicated APP. 7-day battery life, cloud data storage, and over-temperature alarm support. IP67 waterproof and dustproof rating, suitable for high-demand cold chain scenarios.
| Capacity | 20L / 30L / 40L |
|---|---|
| Sensor Accuracy | ±0.5°C |
| Wireless | Bluetooth 5.0 / WiFi |
| Battery Life | 7 days |
| Data Storage | Cloud + APP history trace |
| IP Rating | IP67 (waterproof & dustproof) |
Large-capacity outdoor insulated bag using 600D or 420D water-repellent polyester fiber fabric, abrasion-resistant and tear-resistant. Built-in 5-10mm EPE pearl cotton + sponge layer composite insulation structure, food-grade PEVA or PVC lining. Multi-pocket partition design, front quick-access mesh pocket, equipped with shoulder straps and handles, suitable for family picnics, camping meals for multiple people, and outdoor parties.
| Capacity | 20L / 30L / 50L |
|---|---|
| Outer Shell | 600D or 420D water-repellent polyester |
| Insulation Layer | 5-10mm EPE foam + sponge layer |
| Inner Lining | Food-grade PEVA or PVC |
| Insulation Duration | 4-8 hours |
| Design Features | Multi-pockets + front mesh pocket + straps/handle |
Lunch insulated bag with customizable corporate LOGO, suitable for employee benefits, business gifts, and brand promotion. Supports various LOGO processes including screen printing, heat transfer, and embroidery. Fabric (non-woven/Oxford/polyester), color, and capacity can be customized on demand. Aluminum foil + EPE pearl cotton composite insulation layer, keeping warm for 3-5 hours.
| Capacity | 10L / 15L / 20L |
|---|---|
| Outer Shell | Custom (non-woven/Oxford/polyester) |
| Insulation Layer | Alu foil + EPE foam |
| Inner Lining | Food-grade PEVA or alu foil |
| Insulation Duration | 3-5 hours |
| Customization | Screen print / heat transfer / embroidery |
| MOQ | 500 pcs |
Made of 100% food-grade virgin EPP (expanded polypropylene) material, density 17-100kg/m³ adjustable, thermal conductivity as low as 0.028-0.035 W/(m·K), closed cell rate ≥95%. Can maintain 0-8°C for over 48 hours at 35°C with ice packs, and -18°C for over 24 hours. Compressive strength 150-400kPa, stackable up to 5 layers without deformation. Service life 3-5 years, performance decay less than 5% after over 300 cycles. 100% recyclable and degradable, physical foaming process with no harmful gas emissions, ideal for fresh food e-commerce, central kitchens, and pharmaceutical cold chain bulk delivery.
| Capacity | 5L / 10L / 20L / 50L / 100L / 170L |
|---|---|
| Material | 100% food-grade virgin EPP |
| Density | 17-100kg/m³ (adjustable) |
| Thermal Conductivity | 0.028-0.035 W/(m·K) |
| Closed Cell Rate | ≥95% |
| Compressive Strength | 150-400kPa |
| Temperature Range | -40°C to +130°C |
| Insulation Duration | With ice packs: 0-8°C for 48h+ at 35°C; -18°C for 24h+ |
| Stackable | Up to 5 layers without deformation |
| Service Life | 3-5 years; <5% decay after 300+ cycles |
| Eco-Friendly | 100% recyclable; physical foaming, no harmful emissions |
High-efficiency cold storage gel packs with food-grade HDPE or nylon composite film outer bags, filled with polymer cold storage gel (non-toxic, odorless). Multiple phase change temperatures available: 0°C (refrigeration), -12°C, -18°C, -21°C, -25°C, reusable after freezing. Standard cooling duration 6-12 hours, up to 168-240 hours with high-performance insulated boxes, ensuring cold chain continuity for long-distance transport.
| Weight | 100g / 200g / 300g / 500g / 1000g |
|---|---|
| Phase Change Temp. | 0°C / -12°C / -18°C / -21°C / -25°C (optional) |
| Outer Material | Food-grade HDPE or nylon composite film |
| Fill Material | Polymer gel (non-toxic, odorless) |
| Cooling Duration | 6-12h (standard); with premium box 168-240h |
| Usage | Freeze and reuse |
Made of food-grade PEVA (polyethylene-vinyl acetate) material, chlorine-free, phthalate-free, BPA-free, non-toxic and odorless, total migration below FDA strict limits. Temperature range -20°C to +60°C, suitable for inner protection of insulated bags/boxes, with excellent waterproof and oil-resistant properties. Supports custom printing to meet brand customers' personalized needs.
| Thickness | 0.08mm / 0.15mm / 0.20mm / 0.25mm |
|---|---|
| Material | PEVA (polyethylene-vinyl acetate) |
| Properties | Chlorine-free, phthalate-free, BPA-free |
| Temperature Range | -20°C to +60°C |
| Food Safety | Non-toxic, total migration below FDA limits |
Standalone wireless temperature sensor that can be attached to any insulated container, measuring range -40°C to +85°C, accuracy up to ±0.3°C. Supports multiple wireless transmission methods including NB-IoT, LoRa, and Bluetooth, with real-time cloud data upload, over-temperature alarm, and historical temperature curve traceability. Recording frequency 5-15 minutes, fully compliant with GDP requirements. Battery life up to 1 year, IP67 waterproof and dustproof, ideal for pharmaceutical cold chain, fresh food delivery, and laboratory sample transport monitoring.
| Measurement Range | -40°C to +85°C |
|---|---|
| Accuracy | ±0.3°C |
| Wireless | NB-IoT / LoRa / Bluetooth |
| Battery Life | 1 year |
| IP Rating | IP67 |
| Data Function | Cloud upload + over-temp alarm + history trace |
| Recording Frequency | 5-15 min (GDP compliant) |
Whether you need standard insulated bags, pharmaceutical cold chain boxes, or smart insulated systems with IoT monitoring, our team can provide one-stop service from design to delivery. Contact us now for quotes and samples.
📞 Contact Us for QuoteCommon questions about cold chain and insulation solutions
Our insulated bags and lining materials pass FDA (US Food Contact Materials 21 CFR 177.1520), LFGB (German Food and Commodities Act, including sensory testing, stricter than FDA), and EU food safety certifications. Material safety complies with REACH, RoHS, CPSIA (US children's product safety), California Prop 65 (lead/cadmium/phthalate limits), and AZO azo dye testing.
Professional pharmaceutical cold chain insulated bags use VIP vacuum insulation panels or 10mm NBR closed-cell foam rubber as the insulation layer, with phase change coolants to maintain 2-8°C for 8-12 hours. High-performance models with ice packs can maintain 0-8°C for over 48 hours at 35°C, compliant with GDP Good Distribution Practice, ISTA 7E transport packaging testing, and WHO PQS pre-qualification requirements.
Our EPP foam boxes use 100% food-grade virgin expanded polypropylene, density 17-100kg/m³ adjustable, thermal conductivity 0.028-0.035 W/(m·K), closed cell rate ≥95%. Can maintain 0-8°C for over 48 hours at 35°C with ice packs, and -18°C for over 24 hours. 100% recyclable and degradable, service life 3-5 years, performance decay less than 5% after over 300 cycles, certified by FDA, LFGB, EU, ROHS, and optional HACCP.
Smart insulated bags integrate high-precision temperature sensors with ±0.5°C accuracy (medical grade ±0.3°C), supporting Bluetooth 5.0/WiFi/NB-IoT/LoRa wireless transmission, battery life 7 days to 1 year. Data is uploaded to the cloud in real-time, supporting over-temperature alarms and historical temperature curve traceability, recording frequency 5-15 minutes, fully compliant with GDP requirements. Protection rating IP67, certified by CE (EMC/RED directives), FCC Part 15, RoHS, and REACH.
Yes, we provide full OEM/ODM customization services. Corporate custom lunch bags have a minimum order quantity of 500 pieces, supporting screen printing, heat transfer, and embroidered LOGO. Fabric, color, and capacity can be customized on demand. EPP foam boxes, insulated bags, and ice packs can all be customized in size, density, phase change temperature, and packaging design according to customer specifications. With 20 years of B2B sourcing experience, we provide one-stop supply chain services from design, material quality to production technology.
Justrong serves over 50 countries and regions worldwide, focusing on North America (USA, Canada), Europe (Germany, UK, France, Netherlands, etc.), Asia-Pacific (Australia, New Zealand, Japan, South Korea, Southeast Asia), and Middle East markets. We are familiar with cold chain regulations and certification requirements of various countries, and can provide full certification support including FDA, LFGB, CE, GDP, ISTA 7E, WHO PQS to ensure smooth customs clearance and market entry.